Help with pad knock-back

[cdrod]

I'm fitting '01 Blazer rear discs on a '72 A-body and have a question about pad knock-back. I've only recently learned what pad knock-back is after reading a few posts here on ProTouring.com. My car is an Olds with a corporate 10-bolt that has bolt-in axles; however, even with the bolt-in axles, I still have about .035" of end-play in the axles, i.e. you can pull the rear flanges in and out about .035". Is this enough to cause a pad knock-back issue with my rear brakes? This car will be my daily driver (in Houston traffic) so I need very dependable brakes.

[Ron Sutton]

You won't experience pad knock back from everyday driving. It only happens under hard side loading where the axle face is flexing in relationship to the rotor.

This typically happens when running autocross or road courses.

[cdrod]

Thanks! That's good news.

[Bad94]

Blazer rear disc is a floating caliper, you won't get pad knock back with them.

[Ron Sutton]

Blazer rear disc is a floating caliper, you won't get pad knock back with them.

Yup! What he said.